Split the shape into smaller regular shapes. Calculate the area of those then add it up.
triangle on left, base = 3 height = 8
area = 0.5(3)(8)
= 12
middle rectangle, width = 6 height = 8
area = 6(8)
= 48
small rectangle width = 2 height = 6
are = 6(2)
=12
two tiny triangles become a square side = 2
area = 2(2)
= 4
add them all up...
Total area = 12 + 48 + 12 + 4
= 76 units²